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The Windshield Redesign

Discussion in 'Model S: Interior & Exterior' started by Todd Burch, Jul 11, 2013.

  1. Todd Burch

    Todd Burch Electron Pilot

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    Location:
    Smithfield, VA
    For those interested, I believe I've discovered the cause of the early Model S windshield cracks, and the design change that was implemented to fix it.

    Early Model S windshields had a taper/chamfer on the edges. Instead of being squared off, the glass thinned out at the edges. I presume this was for aerodynamic reasons, but might also have been for ease of manufacturing.

    Anyway, this tapering essentially meant that the edge of the windshield glass was experiencing more stress than other parts of the glass. Since the edges experienced more stress, cracks would initiate on the edges and start propagating inward.

    After my windshield was replaced about 45 days ago, I realized that this taper is no longer in the edge of the glass. It does not have a chamfer at the edges. Thicker edges = less stress on the glass.

    Just an observation.
     
  2. derekt75

    derekt75 Member

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    San Jose, CA
    Does the new glass also have less distortion along the bottom then?
     
  3. Todd Burch

    Todd Burch Electron Pilot

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    #3 Todd Burch, Jul 11, 2013
    Last edited: Jul 11, 2013
    Mine has some distortion at the very bottom. Doesn't bother me as it's almost at the hood line.
     
  4. bollar

    bollar Disgruntled Member

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    Can you tell if there have been any changes to the IR foil - at least around the rear view mirror?
     
  5. scaesare

    scaesare Active Member

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    Mine's a pretty recent build and I have the same.
     
  6. jenga

    jenga Member

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    Location:
    CA
    Has anyone who's had a windshield replaced noticed any excessive noise with the new windshield. My car was much quieter before. Just curious before I contact service again.
     

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